OK....
Iv searched on the errors and the seem to to common for the Vampire game.
I smell HW faliure: ( However you should go through these steps:
1) Run this to check your memory:
http://www.memtest.org/#downiso
2) Are there any entries in the XP Event log? If there are, what are they?
3) Does your PC overheat? Try removing the side of the cabinet.
4) Are all fans in working order?
5) Do you have the newest drivers for MB, Graphics etc?
6) Try and run 3DMark continuesly to stress the PC
http://www.futuremark.com/download/3dmark06/
7) Defrag your drives
8) Run Adaware to clean you PC
9) Run a chkdsk /R